Depends on your definition of time travel. You could move ahead in time (at least it would appear that way) if you were traveling near the speed of light in normal space. Moving backwards in time would be the real trick though. I'm not sure if there are any working theories on how to do that (although there is a theoretical negative velocity). If I'm not mistaken, they are in the process of launching a satallite to futher test the confines of general relativity...I'll have to try to find the link.

Gravity Probe B

http://www.reuters.com/newsArticle....storyID=4857217

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quote:

Originally posted by occrider Gravity Probe B http://www.reuters.com/newsArticle....storyID=4857217

There she blows. "Gravity Probe B" sounds like some cheesy 70's porno.

In a word, of course! The way you have posed the question, I just travelled from 10:53 to 10:55 as I wrote this message!

Honestly though, I have never been able to fully believe that the speed of light is an asymptotic velocity. Given that the speed itself is an absolute number, 3x10^8 m/sec is very fast, but if there is no scientific reason why something can't travel at 2.999999x10^8, then why can't something go just a little faster with a little more incremental energy. I guess I have a hard time believing it because in my mind an infinite amount of input should lead to an infitite output, and given that 3X10^8 is a finite number, it would seem to me that a finite amount of energy would be required to reach that speed. Of course relativity complicates things immensely! Whether time travel is indeed possible or not, it is interesting to think about the ramifications of crossing over the speed of light threshold. I have no clue what would happen or what the experience would be like. I remember an old physics professor telling me that even if we could go faster than the speed of light, it would be impossible to reverse course and cross the threshold again back to the other side once said velocity is reached.

Anyway, I have no idea about time travel. It's a wacky concept that seems far fetched but not impossible.

black holes have no time or space. because in the inside, it is not moving, and it is packed so dense, that space doesnt exist within.

and to have time, u must be moving. if the earth were not traveling through the universe. just stayed stationary, didnt spin or anything. then earth would not have time.

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Of course you can!

They've already done it many times. I've been watching this documentary on television and they have this very nice starship which not only goes 9x the speed of light or something ridicilous like that, but on many episodes they have gone back in time.

The fact that we can watch a documentary set in 2300 should bear testament to time travel alone.

According to this documentary, which only chronicles one ship as it explores the confines of space, the future looks very opmitimistic! We all get to live in a federation of planets, and there are these cool guys that have pointy ears and only think in logic - sort of like Occrider - plus everyone wears these kick ass uniforms.

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No...
now it's not possible...
maybe one day i'll found the answer...

quote:

Originally posted by Dopey ??

Yes, Christopher Lloyd proved it

John Titor as well.

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quote:

Originally posted by occrider John Titor as well.

Don't forget Clark Kent...er Superman. He was much more proactive.

quote:

Originally posted by Yoepus Of course you can! They've already done it many times. I've been watching this documentary on television and they have this very nice starship which not only goes 9x the speed of light or something ridicilous like that, but on many episodes they have gone back in time. The fact that we can watch a documentary set in 2300 should bear testament to time travel alone. According to this documentary, which only chronicles one ship as it explores the confines of space, the future looks very opmitimistic! We all get to live in a federation of planets, and there are these cool guys that have pointy ears and only think in logic - sort of like Occrider - plus everyone wears these kick ass uniforms.

Wow I saw that too! Apparently the human race is destined to overcome all scientific barriers except for the nagging nuisance of static cling-on.

Oh by the way, I'm from the future.

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